Hydraulics & Waterways

Oral

394428 - Assessment of Sediments Impounded by the Bingham Mills Dam in the Hudson River Watershed

Wednesday, June 6
10:30 AM - 12:00 PM
Location: Greenway CD
Co-Authors: Ian Knack, Potsdam, NY – Clarkson University; Chamil Perera, Potsdam, NY – Clarkson University; Rachitha Muthukumarana, Potsdam, NY – Clarkson University; Meng Wang, Potsdam, NY – Clarkson University

The Bingham Mills Dam is an abandoned, old dam located on the Roeliff Jansen Kill, a tributary of the Lower Hudson River in New York. It used to provide hydropower for the mills nearby, and now does not have any use. The Bingham Mills Dam and the waterfalls are barriers for fish migrating upstream. A management option is to remove the dam for safety concern. The research team surveyed the channel bathymetry upstream and downstream of the dam and collected samples to assess the sediment size compositions and the chemicals absorbed on the sediments. The measured data show that the sediments in the reservoir are mostly sand and gravel, and have very little amounts of mercury, PCBs and pesticides. The erodible sediments in the reservoir are less than 1.4 m thick, and about 9,126 m3 in volume. Then, a depth-averaged 2-D numerical model called CMS was used to simulate the sediment erosion after the dam removal. The numerical simulation shows that most of the sediments in the reservoir can be washed downstream within a large flood event. The collected data and derived results can be used for future studies on the feasibility of removing the Bingham Mills Dam and the potential impacts on the downstream stream water quality and habitats.

Weiming Wu, Dr.

Professor
Clarkson University

Dr. Wu is an endowed Professor at Clarkson University, NY, USA. His research interests include sediment transport in rivers, estuaries and coastal waters; surge and wave attenuation by vegetation; dam/levee breaching; and pollutant transport. He has developed several empirical formulas for sediment settling, deposit porosity, movable bed roughness and nonuniform sediment transport, as well as a number of one-, two- and three-dimensional computational models for free surface flows, sediment transport, pollutant transport, aquatic ecosystems, vegetation effects and dam/levee breaching. He published a book "Computational River Dynamics" through Taylor & Francis, UK in November 2007. He is a Fellow of ASCE, and a member of IAHR and WASER. He currently serves as an Associate Editor for ASCE Journal of Hydraulic Engineering, and Chair for Sedimentation Committee.

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394428 - Assessment of Sediments Impounded by the Bingham Mills Dam in the Hudson River Watershed



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